MDD025A-N-100-N2G-040GD1
MDD Synchronous Motors
The Bosch Rexroth Indramat MDD025A-N-100-N2G-040GD1 from the MDD Synchronous Motors series is a precision-engineered motor for digital drive controllers designed to meet exacting automation requirements. This Motor Size 025 unit features a Motor Length Code A and a compact Centering Diameter 40 mm for seamless integration into tight machine layouts. Housed in a Standard enclosure with a Plain shaft and shaft seal protection, the motor ensures long-term reliability in demanding industrial environments. With its carefully optimized design, the MDD025A delivers robust performance while maintaining a minimal footprint.
The MDD025A operates at a Nominal Speed 10000 min⁻¹ and provides a Continuous Torque at Standstill 0.33 Nm, making it ideal for tasks requiring rapid acceleration and precise positioning. Equipped with blocking brake and a Holding Brake Torque 1.0 Nm, it secures load position immediately upon power loss. The unit’s Standard balancing reduces vibration at high speeds, while integrated Resolver feedback offers high-resolution rotor position sensing. A factory-fitted Connecting cable with coupling unit and Connection Direction Side B simplify wiring and service access.
Engineered for seamless pairing with Bosch Rexroth digital drive controllers, the MDD025A supports advanced motion profiles and closed-loop control algorithms. The standard (without side B shaft end) design maintains compatibility with a wide range of mounting accessories, ensuring rapid deployment in packaging, robotics, and pick-and-place applications. Robust sealing, precision feedback, and brake integration make this drive-ready motor a dependable choice for high-speed automation systems.
Technical Specifications
Balancing
Standard
Holding Brake
With blocking brake
Holding Brake Torque
1.0 Nm
Centering Diameter
40 mm
Housing
Standard
Motor Feedback
Resolver feedback
Continuous Torque at Standstill
0.33 Nm
Motor Length Code
A
Motor Size
025
Nominal Speed
10000 min⁻¹
Shaft Seal
With shaft seal
Shaft Type
Plain shaft
Connection Direction
Side B
Connection Type
Connecting cable with coupling unit
Product Type
Motor for digital drive controllers
Shaft End
Standard (without side B shaft end)
Frequently Asked Questions
What are the mechanical stress and bearing lifetime implications when operating the MDD025A at its nominal speed of 10 000 min⁻¹?
At 10 000 rpm the radial and axial loads must be minimized (well within the shaft bearing ratings), since centrifugal forces on the rotor and imbalance at this speed can cause vibration and heating; proper balancing (as provided) reduces but does not eliminate this. Adequate cooling and ensuring that the shaft seal and housing tolerate the thermal expansion are also essential to maintaining bearing life.
How does the holding brake torque of 1.0 Nm affect safety and load-holding in case of sudden power loss?
The 1.0 Nm brake torque ensures that the load will be held securely without drift when power is removed, useful for vertical axes or where back-driving torque could move the load. However, designs must account for cumulative load torque (gravity, inertia) to ensure the brake is sufficient under worst-case conditions.
What are the benefits and limitations of resolver feedback in high-precision applications such as robotics or pick-and-place?
Resolver feedback provides robust rotor position sensing even under harsh electrical/magnetic noise and temperature fluctuations, enabling accurate closed-loop control. However, compared to high-resolution encoders, resolvers may have lower resolution and require additional processing (interpolation, calibration) to reach very fine positioning tolerances.
How does continuous torque at standstill (0.33 Nm) influence acceleration and low-speed performance?
The 0.33 Nm standstill torque defines how much load can be held or accelerated from zero without motion; higher required starting torque (e.g., overcoming static friction/inertia) will demand greater current or lead to slower start. For frequent start-stop duty cycles, ensure the drive controller can supply sufficient peak current without overheating.
What mounting and footprint constraints arise from the centering diameter of 40 mm and motor length code A?
A 40 mm centering diameter enables compact mounting interfaces and smaller couplings, which aids in tight machine layouts. The length-code A (shorter than longer length versions) reduces axial space needed but limits extension for cooling fins or auxiliary parts, so cable routing and service access must be planned accordingly.
Common Misspellings
MDD-025A-N-100-N2G-040GD1
MDD025A N 100 N2G 040GD1
MDD025A-N-100-N2G-040-GD1
MDD025AN100N2G040GD1
MDD25A-N-100-N2G-040GD1
MDDO25A-N-100-N2G-040GD1
MDDO25A-N-1OO-N2G-O4OGD1
Internal Product Review
The Bosch Rexroth Indramat MDD025A-N-100-N2G-040GD1 motor offers precise control with a nominal speed of 10000 min⁻¹ and 0.33 Nm continuous torque at standstill. Its resolver feedback and 1.0 Nm holding brake ensure reliable positioning during power loss. This motor is well-suited for packaging machinery, robotics, and automated pick-and-place applications.
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